My Quest for the ultimate d100 Fantasy

Last year I was all about d100 gaming.  I was playing in a Call of Cthulhu game PBEM and having a great time of it.  In addition, I switched my PbP Greyhawk game over to Open Quest.  How did I decide on Open Quest...

First I purchased the following d100 books over the last two years:

1.  Chaosium Basic Roleplaying
2.  Stormbringer 4th ed
3.  Stormbringer 5th ed
4.  Elric Dark fantasy RPG
5.  Rolemaster Classic RM2.
6.  Open Quest.
7.  Legend System (Mongoose)
8.  Runequest SRD (Mongoose)

First of all, why did I need so many.  Each of these has points I like and points I don't like.  Open Quest was the one I finally settled on.  Unfortunately it was the last one i picked up...

In the next couple of posts on this site I'd like to discuss some of the differences between each edition and describe how I ended up picking Open Quest.